Other Celsius Conversions
Celsius To Delisle
Celsius To Fahrenheit
Celsius To Kelvin
Celsius To Newton
Celsius To Rankine
The Réaumur scale, while less common today, holds a significant place in the history of temperature measurement. Developed by René Antoine Ferchault de Réaumur in 1730, this scale was once widely used across Europe, particularly in France and Germany. This post will explore the Réaumur scale, its relationship to Celsius, and provide you with a convenient online calculator for easy conversions.
The Réaumur scale defines the freezing point of water as 0 degrees Réaumur (°Ré) and the boiling point of water as 80 °Ré. This scale is based on the expansion of alcohol, making it distinct from the Celsius scale, which is based on the expansion of water.
To convert a temperature from Celsius (°C) to Réaumur (°Ré), you can use the following formula:
°Ré = (°C * 4) / 5
For example, to convert 20°C to Réaumur:
°Ré = (20°C * 4) / 5 = 16 Ré
While the Réaumur scale is less common today, understanding its relationship to Celsius can be helpful for historical research, scientific comparisons, and simply expanding your knowledge of temperature measurement systems.
| Celsius | Raumur | Celsius | Réaumur | Celsius | Réaumur | Celsius | Réaumur |
|---|---|---|---|---|---|---|---|
| 1°C | 0.80ºRé | 21°C | 16.80ºRé | 41°C | 32.80ºRé | 61°C | 48.80ºRé |
| 2°C | 1.60ºRé | 22°C | 17.60ºRé | 42°C | 33.60ºRé | 62°C | 49.60ºRé |
| 3°C | 2.40ºRé | 23°C | 18.40ºRé | 43C | 34.40ºRé | 63°C | 50.40ºRé |
| 4°C | 3.20ºRé | 24°C | 19.20ºRé | 44°C | 35.20ºRé | 64°C | 51.20ºRé |
| 5°C | 4.00ºRé | 25°C | 20.00ºRé | 45°C | 36.00ºRé | 65°C | 52.00ºRé |
| 6°C | 4.80ºRé | 26°C | 20.80ºRé | 46°C | 36.80ºRé | 66°C | 52.80ºRé |
| 7°C | 5.60ºRé | 27°C | 21.60ºRé | 47°C | 37.60ºR | 67°C | 53.60ºRé |
| 8°C | 6.40ºRé | 28°C | 22.40ºRé | 48°C | 38.40ºRé | 68°C | 54.40ºRé |
| 9°C | 7.20ºRé | 29°C | 23.20ºRé | 49°C | 39.20ºRé | 69°C | 55.20Ré |
| 10°C | 8.00ºRé | 30°C | 24.00ºRé | 50°C | 40.00ºRé | 70°C | 56.00ºRé |
| 11°C | 8.80ºRé | 31°C | 24.80ºRé | 51°C | 40.80ºRé | 71°C | 56.80ºRé |
| 12°C | 9.60ºRé | 32°C | 25.60ºRé | 52°C | 41.60ºRé | 72°C | 57.60ºRé |
| 13°C | 10.40ºRé | 33°C | 26.40ºRé | 53°C | 42.40ºRé | 73C | 58.40ºRé |
| 14°C | 11.20ºRé | 34°C | 27.20ºRé | 54°C | 43.20ºRé | 74°C | 59.20ºRé |
| 15°C | 12.00ºRé | 35C | 28.00ºRé | 55°C | 44.00ºRé | 75°C | 60.00ºRé |
| 16°C | 12.80ºRé | 36°C | 28.80ºRé | 56°C | 44.80ºRé | 76°C | 60.80ºRé |
| 17°C | 13.60ºRé | 37°C | 29.60ºRé | 57°C | 45.60ºRé | 77°C | 61.60ºRé |
| 18°C | 14.40ºRé | 38°C | 30.40ºRé | 58°C | 46.40ºRé | 78°C | 62.40ºRé |
| 19°C | 15.20ºRé | 39°C | 31.20ºRé | 59°C | 47.20ºRé | 79°C | 63.20ºRé |
| 20°C | 16.00ºRé | 40°C | 32.00ºRé | 60°C | 48.00ºRé | 80°C | 64.00ºRé |
